Anything that's 0.010 inches thick is going to be a bit flimsy
Somebody got an European address?
Perhaps, but you should see the flimsy nut slotting file they sent me for $15.
Unstewed and cheaper: Amazon link
Hmm. I got the set of double edged files, and even the .012/.020 file is pretty sturdy. Did you get the single edge? I've never used those, but they look kinda flimsy judging from the website.